XFL4012 Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Shielded Power Inductors

Document 935-1
Shielded Power Inductors – XFL4012
• High current ratings and low DCR
• Very low profile, only 1.2 mm high
Designer’s Kit C455 contains 5 of each XFL4012 and XFL4015 value.
Core material Composite
Weight  85 – 95 mg
Environmental  RoHS compliant, halogen free
Terminations  RoHS compliant tin-silver (96.5/3.5) over copper.
Other terminations available at additional cost.
Ambient temperature  –40°C to +125°C with Irms current, +125°C
to +165°C with derated current.
Storage temperature  Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat  Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL)  1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging  1500/7″reel; 5000/13″ reel  Plastic tape:  12 mm wide,
0.23 mm thick, 8 mm pocket spacing, 1.40 mm pocket depth
PCB washing  Only pure water or alcohol recommended

  _{Part number}1
XFL4012-121ME_
XFL4012-251ME_
XFL4012-471ME_
XFL4012-601ME_
  _Inductance2
±20% (µH)
0.12
0.25
0.47
0.60
 DCR (mOhms)³
typ    max
5.20
7.64
14.07
17.40
5.88
8.40
15.48
19.14
 SRF typ⁴
(MHz)
220
150
115
95.0
  Isat (A)⁵   Irms (A)⁶
10% drop 20% drop 30% drop 20°C rise   40°C rise
6.9
9.8
11.3
4.4
7.7
9.7
3.2
5.5
6.7
2.8
5.0
6.5
9.60
13.20
8.15
11.45
6.25
8.70
5.45
7.65
1. When ordering, please specify packaging code:
XFL4012-601MEC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (1500 parts per full reel).
B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added
($25 charge), use code letter C instead.
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked
(5000 parts per full reel).
2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc.
3. DCR measured on a micro-ohmmeter.
4. SRF measured using Agilent/HP 4395A or equivalent.
5. DC current at which the inductance drops the specified amount from its value without current.
6. Current that causes the specified temperature rise from 25°C ambient.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Irms Testing
Irms testing was performed on
0.75 inch wide × 0.25 inch thick
copper traces in still air.
Temperature rise is highly
dependent on many factors
including pcb land pattern, trace
size, and proximity to other com-
ponents. Therefore temperature
rise should be verified in appli-
cation conditions.
US [phone] [e-mail]
UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 935-1  Revised 07/25/12
© Coilcraft Inc. 2012
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check out web site for latest information.